Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in Brazil
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Neotropical ichthyology (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100165 |
Resumo: | We tested the contribution of the phylogenetic and specific components to the ecomorphological structure of stream fish from the upper Paraguai River and upper São Francisco River basins, and identified nodes in the phylogenetic tree at which major ecological shifts occurred. Fish were sampled between June and October of 2008 in 12 streams (six in each basin). In total, 22 species from the upper Paraguai River basin and 12 from the upper São Francisco River were analyzed. The ecomorphological patterns exhibited phylogenetic signal, indicating that the ecomorphological similarity among species is associated with the degree of relatedness. A strong habitat template is most likely to be the primary cause for a high phylogenetic signal. A significant contribution from the specific component was also detected, supporting the idea that the phylogenetic signal occurs in some clades for some traits, but not in others. The major ecological shifts were observed in the basal nodes, suggesting that ecological niche differences appear to accumulate early in the evolutionary history of major clades. This finding reinforces the role of key traits in the diversification of Neotropical fishes. Ecological shifts in recent groups could be related to morphological modifications associated with habitat use. |
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Neotropical ichthyology (Online) |
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Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in BrazilMorphological diversityNiche conservatismEcophylogeneticsParaguay basinSão Francisco basinWe tested the contribution of the phylogenetic and specific components to the ecomorphological structure of stream fish from the upper Paraguai River and upper São Francisco River basins, and identified nodes in the phylogenetic tree at which major ecological shifts occurred. Fish were sampled between June and October of 2008 in 12 streams (six in each basin). In total, 22 species from the upper Paraguai River basin and 12 from the upper São Francisco River were analyzed. The ecomorphological patterns exhibited phylogenetic signal, indicating that the ecomorphological similarity among species is associated with the degree of relatedness. A strong habitat template is most likely to be the primary cause for a high phylogenetic signal. A significant contribution from the specific component was also detected, supporting the idea that the phylogenetic signal occurs in some clades for some traits, but not in others. The major ecological shifts were observed in the basal nodes, suggesting that ecological niche differences appear to accumulate early in the evolutionary history of major clades. This finding reinforces the role of key traits in the diversification of Neotropical fishes. Ecological shifts in recent groups could be related to morphological modifications associated with habitat use.Sociedade Brasileira de Ictiologia2015-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100165Neotropical Ichthyology v.13 n.1 2015reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/1982-0224-20140045info:eu-repo/semantics/openAccessRoa-Fuentes,Camilo AndrésCasatti,LilianRomero,Renato de Meieng2015-04-22T00:00:00Zoai:scielo:S1679-62252015000100165Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2015-04-22T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false |
dc.title.none.fl_str_mv |
Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in Brazil |
title |
Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in Brazil |
spellingShingle |
Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in Brazil Roa-Fuentes,Camilo Andrés Morphological diversity Niche conservatism Ecophylogenetics Paraguay basin São Francisco basin |
title_short |
Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in Brazil |
title_full |
Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in Brazil |
title_fullStr |
Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in Brazil |
title_full_unstemmed |
Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in Brazil |
title_sort |
Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in Brazil |
author |
Roa-Fuentes,Camilo Andrés |
author_facet |
Roa-Fuentes,Camilo Andrés Casatti,Lilian Romero,Renato de Mei |
author_role |
author |
author2 |
Casatti,Lilian Romero,Renato de Mei |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Roa-Fuentes,Camilo Andrés Casatti,Lilian Romero,Renato de Mei |
dc.subject.por.fl_str_mv |
Morphological diversity Niche conservatism Ecophylogenetics Paraguay basin São Francisco basin |
topic |
Morphological diversity Niche conservatism Ecophylogenetics Paraguay basin São Francisco basin |
description |
We tested the contribution of the phylogenetic and specific components to the ecomorphological structure of stream fish from the upper Paraguai River and upper São Francisco River basins, and identified nodes in the phylogenetic tree at which major ecological shifts occurred. Fish were sampled between June and October of 2008 in 12 streams (six in each basin). In total, 22 species from the upper Paraguai River basin and 12 from the upper São Francisco River were analyzed. The ecomorphological patterns exhibited phylogenetic signal, indicating that the ecomorphological similarity among species is associated with the degree of relatedness. A strong habitat template is most likely to be the primary cause for a high phylogenetic signal. A significant contribution from the specific component was also detected, supporting the idea that the phylogenetic signal occurs in some clades for some traits, but not in others. The major ecological shifts were observed in the basal nodes, suggesting that ecological niche differences appear to accumulate early in the evolutionary history of major clades. This finding reinforces the role of key traits in the diversification of Neotropical fishes. Ecological shifts in recent groups could be related to morphological modifications associated with habitat use. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100165 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100165 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1982-0224-20140045 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
dc.source.none.fl_str_mv |
Neotropical Ichthyology v.13 n.1 2015 reponame:Neotropical ichthyology (Online) instname:Sociedade Brasileira de Ictiologia (SBI) instacron:SBI |
instname_str |
Sociedade Brasileira de Ictiologia (SBI) |
instacron_str |
SBI |
institution |
SBI |
reponame_str |
Neotropical ichthyology (Online) |
collection |
Neotropical ichthyology (Online) |
repository.name.fl_str_mv |
Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI) |
repository.mail.fl_str_mv |
||neoichth@nupelia.uem.br |
_version_ |
1752122181689540608 |